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Rain Bird ESP-6TM "PR OFF" Display Meaning and Fix

"PR OFF" on a Rain Bird ESP-6TM means no 110VAC power to the controller or a blown internal fuse. If valves still operate manually, the controller panel is failing.

Diagnosis

Check outlet with lamp/tester. Dead outlet = tripped GFCI/breaker.
If outlet live, check transformer: measure 24VAC at controller's yellow wires. No 24V = bad transformer (~$20).
If 24V present but "PR OFF" shows, controller's power detection circuit or fuse is faulty.

Fuse Location

Some ESP models have a small glass fuse on the circuit board (0.5A, 250V). Replace if blown. If no fuse or replacement doesn't fix, the controller board has failed.

Note

"PR" = "Power". The display is telling you the controller isn't seeing line voltage. If the system waters but shows this, the panel is glitching—plan replacement.

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